That's what friends are for! Drew Barrymore holds open the door for Charlie's Angels co-star and BFF Cameron Diaz

On film they fought side-by-side but in real life Drew Barrymore and Cameron Diaz are ladies that lunch.

It has been a decade since they starred in the last of the their
Charlie's Angels franchises but the pair are still fast friends.

Cameron and Drew stepped out in the Hamptons, New York, on Friday.

Ladies' day: Drew Barrymore and Cameron Diaz spent the day together in the Hamptons, New York, on Friday

The leading ladies obviously planned to make the most of the final
weeks of summer grabbing some supplies from deli, Mary's Marvelous!, and heading out with friends for a picnic.

It seems the pair found it hard to decide what to get as everyone in the party emerged with large paper bags filled with goodies.

Drew decided to be courteous and held the door open for her Hollywood pal, however, the 38-year-old quickly found herself stuck holding the door for a long line of woman who had the same picnic idea.

Not noticing her friend was stuck Cameron breezed ahead.

Thanks! Drew got stuck holding the door for a large group of women who all grabbed goodies for a picnic

For their picnic day the 40-year-old - who celebrates her 41st birthday in just a few days - went for a simple look of low couched tracksuit pants, that she stylishly pushed up her calves, a white tank highlighting her tan and a pair of flip flops.

Drew meanwhile must feel the cold a bit more, as the Never Been Kissed star donned loose blue jeans, a stripped T-shirt and a short sleeve cardigan.

The two actresses are incredibly close and often call each other sister.

Drew explained why they were so close to Life & Style: 'She’s my sister, but we bro out and have crazy adventures. Most people don’t know this, but she’s very edgy.'

Soul sisters: The pair became friends on the set of Charlie's Angels which also stared Lucy Liu, centre